On Mon Feb 28, 2011 at 07:22:08AM +1100, Mark Andrews wrote:
This is often required for legislation compliance. DHCP does this well.
Does it really matter what address a customer has as long as it comes from the /64, /56 or /48 assigned to them?
You are assuming an access technology that lends itself to subnet-per-customer. I run a network with 50,000+ end users using ethernet-based access to the user's room. In IPv4, I run 1 or more subnets per building (depending on the number of rooms in the build). I use DHCP to assign IPs, and record the DHCP assignments allow me to trace users in the event of abuse complaints. I use DHCP Option82 to allow me to correlate multiple devices in a user's room. I feed the DHCP information into my bandwidth management platform to enforce different levels (i.e. speeds) of service per user depending on what they've purchased. I have yet to come up with a viable solution to do all of the above in IPv6 without using DHCPv6. At the moment, that means that OSX users are not going to get IPv6. Simon For IPv4, I use DHCP to